On Tue, Jun 28, 2022 at 12:04:28AM +0000, Nadav Amit wrote:
> > [1] commit 824ddc601adc ("userfaultfd: provide unmasked address on page-fault")
>
> Indeed this change of behavior (not aligning to huge-pages when flags is
> not set) was unintentional. If you want to fix it in a separate patch so
> it would be backported, that may be a good idea.
The fix seems to be straightforward, though. Nadav, wanna post a patch
yourself?
That seems to be an accident and it's just that having sub-page mapping
rely on the accident is probably not desirable.. So irrelevant of the
separate patch I'd suggest we keep the requirement on enabling the exact
addr feature for sub-page mapping.
Thanks,
--
Peter Xu
